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FREE WORKSHEET ADDITION AND SUBTRACTION PROBLEM SOLVING

Explain how you know to use a variable in an addition or subtraction expression

What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain. Can you solve for a variable in an equation? Explain. Write a mathematical phrase or sentence in word form for your classmates to translate into numbers and math symbols. (Hint: A math sentence is an "equation." A math phrase is an "expression.")